[mythtv-users] High-Definition Playback performance data
ahagge at wbfa.com
Mon Apr 4 18:08:47 UTC 2005
This is all GREAT information, especially for folks looking to
purchase/upgrade hardware to use MythTV. Hopefully you'll find time to
organize this, HTML-ize (table format?) it and put if up on your
website. As John Kuhn pointed out, it'd be fantastic if you could re-do
the tests with XvMC turned on (or off, depending on which these were
Perhaps others could add their data points as well. I'll be glad to as
soon as I get a bit more experience with things, so that I can trust my
numbers a bit more...
Jarod Wilson wrote:
>I've lost track of the thread where I said something about trying a GeForce
>6200 in place of a GeForce 4 MX with an Athlon XP 1800 system, to see if that
>would give any significant playback performance boost with High Definition
>recordings. Well, the answer is no, not really, but a bit of a cpu upgrade
>sure helped. Here's a quick summary of my findings today (from memory though,
>wish I'd actually written it all down). In all cases, I'm using libmpeg2 for
>Athlon XP 1800 w/AGP GF4MX, 6629 nvidia driver:
>-Able to play back 720p, cpu around 85% used.
>-Able to play back 1080i without a deint filter, cpu around 95% used.
>-Stutter every second or two on 1080i with deint filter on, cpu completely
>Athlon XP 1800 w/AGP GF4MX, 7174 nvidia driver:
>-Able to play back 720p, cpu around 70% used.
>-Able to play back 1080i without deint, cpu around 85% used.
>-Stutter every few seconds on 1080i w/deint filter on, cpu pegged.
>Athlon XP 1800 w/AGP GeForce 6200, 7174 nvidia driver:
>-Maybe slightly better, but no significant difference from the GF4MX.
>Athlon XP 2600 w/AGP GF4MX, 7174 nvidia driver:
>-Able to play back 720p, can't remember cpu usage.
>-Able to play back 1080i w/no deint, can't remember cpu usage.
>-Able to play back 1080i w/kernel deint filter enabled, cpu usage fluctuates
>between 80 and 95%.
>I've decided to stick with the 2600 and GF4MX, and my secondary Myth box can
>now handle 1080i programming without a problem. I'll get the missing cpu
>utilization numbers one of these days...
>mythtv-users mailing list
>mythtv-users at mythtv.org
More information about the mythtv-users